The NGM-4.8 is a professional-grade internal combustion rail grinding machine dedicated to correcting and optimizing the profile and surface integrity of rail tracks. This equipment is crucial for removing surface defects such as corrugations, rail burns, and minor head checks, which are major contributors to increased noise and accelerated track wear. By restoring the optimal rail head profile, the NGM-4.8 ensures superior wheel-rail interaction, significantly extending rail service life and improving overall ride comfort and safety. Its internal combustion power source grants it excellent mobility and independence in the field, allowing maintenance crews to perform spot-grinding operations quickly across expansive rail networks. The machine is designed for stability during high-precision grinding tasks.
| Features | Details & Specifications (General) |
| Restoration | Effectively eliminates rail surface defects and corrugations. |
| Accuracy | Ensures precise rail head profile restoration. |
| Mobility | Internal combustion power for use on non-electrified track sections. |
| Safety | Improves wheel-rail contact, enhancing operational safety. |
| Model Variants (Grinding Series) | Power Type | Key Function |
| NGM-4.8 | Internal Combustion | Standard Rail Profile Grinding |
| DGM-2.2II | Lithium Battery | Multi-functional Switch Grinding |
| GM-2.2 | Electric | Electric Rail Profile Grinding |